Locomotive equalizer rigging



nir

@et 23, i928.

(UNITED STATES ,t 'y 1,688,419 PATENT; .oFfFI-CE.

CLARENCE B. yHARBIISON, OF LIMA, OHIO, .ASSIGNOR TO TH'E OHIO, STEEIY- .FOUNDRY COMPANY, OF LIMA, OHIO, A CORPORATION 0F OHIO. i

LoooMorrvE EQUALIZER RIGGING. c

Application led September vr15, 1327, Serial No. 219,580.

rlhis invention relates to locomotives having trailer' trucks, and -more .particularly to equalizerrigging for the same, and has for its principal object to provide a new and improved arrangement therefor.

is heretofore. constructed, trailer trucks usually are pivot-ally mounted adjacent their front ends to the locomotive main frame, andv have a pair of equalizer bars disposed at opposite sides thereof connected to the rear spring hangers of the rear driving Wheels, constituting part of' the main equalizing system of the locomotive. Accordingly, the pivotal or radial movement of thetrailer equalizer liars tends to twist and sway the lower end of the spring hangers from their normal "ion, and thus disturb the proper funcg of the equalizing system. Y y invention consists in providingguide means for maintaining the spring hangers in p per vertical position, While permitting limited radial movement of the trailei truck equalizer bars relative thereto, as is illustrated in the accompanying' drawings showcertain en'ibodiments of the invention.

in the drawings, Figure 1 is a fragmentary side view of the equalizing members constructed in accordance with my invention as auulied to onerside of a locomotive main and trailer truck, the latter parts beine' indicated in dotted lines.

Figure 2 is a detail rear view drawn to a somewhat smaller scale showing the spring hanger and cross equalizer bar shown in Figure 1, with the truck equalizers removed.

igure 3 is an enlarged detail view in vertical section showing a modified form ofcounection for the spring hanger and equalizer bar, including an antifriction roller bearing.

Referring to details of the embodiment` shown in the drawing, a portion of the locomotive main frame is indicated at 10 and a portion of the trailer truck frame is indicated at 11. The truck frame is pivotally connected to the` main frame at point 11a, as usual. rIhe rear driver axle 14 has a. spring` saddle 12 and spring 13. A front spring` hanger 15 is connected to the spring 13 and forms part of the usual equalizing system, further showing` of which is omitted herein, as it forms no part of the present invention. The rear spring hanger 16 is herein shown as connected to the outer end of a transverse equalizer bar 17. An auxiliary hanger 18 extends downwardly from the transverse equalizer bar 17, as isbest shown in Figure 2.

The trailer truck ,11 lis provided with the usual pair of equalizer membersV projecting forwardly for connection with the main equalizing' system, herein only yone of such equalizer membersl) being show as disposed as usual at one side ofthelocomotive. In the particular form illustrated, the equalizer bar 19 is pivotally mounted on pin 19a, but it will Ybe understood that'this 'bar may, as in some forms of trailer trucks, be'formed integral vwith the trailer truck frame itself. l

Referring now more particularly to the novel feature of my invention, it will beseen that I provide a suitable guide member 20 attached to the Vmain frame 10 of the locomotive in any suitable manner to support the lower end of the vertically rdisposed hanger member 18, but permitting vertical movement thereof. In the form shown, the/guide 20 is secured to a plate 21 attached to a pedestal plate 22 indicated as forming part of the main franieV 10, saidguide `being in position to engage the lower end-lfaof said hanger member 18. The forward end of the trailer equalizer bar 19 extends into an eye 23 formed in the hanger memberlS and slidably engages a seat 2st to permit horizontal movement of the equalizerarm relative tothe hanger 18. Thus when the trailer truck swings radially with respect to the main frame 10, the vertically disposed hangerlS will be maintained in its normal vertical position, but the equalizer members 1,9, 19, on opposite sides of the frame may re-adjust themselves by sliding movement on their respective seat 24, in a direction substantially tangential to theV axis lof the truc In the modified form shown in Figure 3, I have provided an anti-friction roller 25 which may be provided in the seat. 24 of the eye 23 so as to reduce friction between the part 19 and the seat 24, if desired. Y

Although I have shown Vand described one form in which my invention may be', embodied, it will be understood that I do not wish to be limited to the exact construction shown and described, but that various changes and modifications 'may be made Without departing from the spirit and scope of my invention.v Y f I claim'as my invention: Y

1; In a locomotive, a main frame, and a r trailer truck pivotally connected for horizontal movement relative thereto, va pair of yso tal nioveinent relative thereto, a pair of equal- Septeniher, 1927. I

izer bars carried by said truck, equalizer rigging carried by said main traine moludlng a pair of vertically disposed hangers guided for vertical movement on said fra-ine, each or said equalizer arnis having horizontal sliding engagement on their respective hangers in a direction substantially tangential to the pivetal axis 'oi said truck.

' Signed at Lima, Ohio, this 12th day of CLARENCE Bi. HARRISON. 

